| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a fuel supply device for liquid fuel which is free from corrosion and actually impermeable. SOLUTION: A fluid fuel, particularly gasoline, supply device comprises composites pipes comprising an inner polymeric layer 1, an intermediate layer 2 of aluminum foil and a thin outer polymeric layer 3. The inner polymeric layer 1 provides the mechanical strength of the pipe, the foil layer 2 forms an impermeable barrier to prevent or reduce gasoline permeation or to prevent the ingress of external contaminants into the device, whilst the thin outer polymeric layer 3 protects the aluminum foil 2 from attack by aggressive soils and chemicals at external part of the supply device.</p> |
